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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB190302484


Patent:GB 190302484
Title:Improved Mechanical Calculating Device
Date:02.02.1904
Place:
Country:Great Britain
Person:Magne, Fernand Leonard (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB190302484


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Aus der Patentschrift GB190302484